Power generating apparatus



Sept. 6, 1938. E. M. EVANS POWER GENERATING APPARATUS Filed Dec. 7, 1936 4 Sheets-Sheet -l ATTORNEYS Sept. 6,1938. E. M. EVANS POWER GENERATING APPARATUS Filed Dec. 7, 1956 A A J M "L... 6-9 0 6 x o o 0 Q QwQ O N b D O I o 9@ (3 3 3 NL} 3 4 Sheets-Sheet 2 ATTORNEYS Sept. 6, 1938. E. M. EVANS POWER GENERATING APPARATUS Filed Dec. 7, 1936 4 Sheets-Sheet 3 N m mj2 ATTORNEYS Sept. 6, 1938. v v E. M, vANg 2,129,413

POWER GENERATING APPARATUS Filed Dec. 7, 1936 4 sheets-sheet 4 ATTORNEYS Patented 'Sept.

UNITED STATES 2,129,413 POWER GENERATING APPAMTUS Eugene M. Evans, Jefferson City, Mo., assignor of one-tenth to Ernest J. Tietjen,

J eiferson City,

Application December 7,1936, Serial No. 114,707 2 Claims. (o1. 60-42) This invention relates to power generating apparatus and has for an object to provide apparatus comprising a boilershell having a combustio'n chamber extending approximately the 5' full length of the shell and heat transfer tubes extending upwardly from the upper side of the combustion chamber, there being turbine type engines arranged within the boiler shell above the water lineof the shell and connected in 10 a series, the steam pipes extending from the steam dome of the boiler shell to the intakes'of one set of engines and the exhaust outlets of this set of engines being connected to the intakes of another, set of engines from which last engines the 16 exhaust is conveyed 'outside of the boiler shell and may be again used for energizing an additional engine if desired. l

A further object of the invention is to provide apparatus of this type in which heat transfer 20 tubes are open at their upper ends to permit the products of combustion to escape therefrom into the boiler shell, a portion of the products of com-,- bustion being directed against the casings of the engines and all of the products of combustion 5.being mixed with the steam in the steam dome to the end that the energy of the combustion is used first to heat water to make steam and that energy which is not absorbed by the water in creating steam is further used by mixing with the steam,

under equal pressure, before going to the engines so that a higher percentage of power is derived by the heat of. combustion than by other known methods at the present time.

A further object of the invention is to provide apparatus of this type embodying a rotary fan type separator at each intake of the'engines to convey foreign substance such as carbon, soot, or condensate past the intake of the engine and to the bottomof'the separator where'provision is' 40 made for'its reception and exhaust. I

' 1th the above and other objects in view the invention consists of .certain novel details of con struction and combinations of parts hereinafter fully described and claimed, it being understood 5 that variousqm'odifications may be resorted to within the scopeof the appendedclaims'without departing from the spirit or sacrificing any of the advantages of the invention,

'In the accompanying drawings forming part 50 of thisspeciflcation; v I

Figure llispa longitudinal sectional view of power generating apparatus constructed in accordance with theinvention. Figure 2 is a longitudinal sectional view taken onthe line of Figure 1 showing the sets of pressure oil bumer.

' As best shown 7 aligned turbine type engines I5 ,shown inFig'ure 1.' Steam turbine type engines in p lan and connected in series.

Figure3 is a cross sectional view taken on the line 3-3 of Figure 1 showing the relativelocation of the' combustion chamber, heat transfer' 5 tubes, turbine type engines and water space in the boiler shell. Figure 4 is a cross sectional view similar to Figure 3 and taken onthe line i-J of Figure 1 to show more clearly the stator and rotor construction of each engine.

Figure 5 isa detail cross sectional view taken on the line 5 5 of Figure 1 showing the separator fan of one of the engines. I

Figure 6 is a detail cross sectional view similar to Figure 5 but showing the partition and port therein adjacent the initialstator through which port the steam and products of combustion will be urged past the intake port of the initial stator.

Referring now to the drawings in which like characters of reference designate similar parts in the various views, l0 designates a boiler shell within the bottom of which is located a combustion chamber I] which extends substantially the eritire length of the lower portion of the boiler shell and is submerged completely below the water level. A fuel nozzle connection l2 opens through one end wall of the combustion chamber, for attachment of any suitable high A safety valve [3 is con-' nected with the opposite end of the combustion chamber. 1 A plurality of heat transfer tubes l4 extend upwardly from the upper side of the. combustion chamber, through the water, and end above the water line, these tubes being arranged in such manner that excess heat, not absorbed by the water, and the gases of combustion are forced against the outer shells of turbine type engines,

.thereby adding heat to the engines in order to 0 -maintain a constant temperature. Hot gases of combustion, mix with the steam generated to energize the internally disposed turbine type engines. v

in Figures 2 and.3 a. pair of and IG are mounted on a commo shaft "and in a common casing It. 'A similar pair of-turblne type engines 19 and 20 are mountedin the boiler shell on a common shaftjll and are housed by a common casing 2'2. Steam pipes 23 and. 24 extend from the steam dome 25 ofthe boiler shell to the intake ends of respective engines i5 and' "was best peslfland-ll ex-. tend iromthe oijt 'ese engines and are connected, as best shown in Figure 2, to a steam pipe 23 which is connected to steam pipes 29 and 30 which enter the intake ends .of the second pair of engines l9 and 20. Thus the" engines are connected'in series parallel so that the exhaust from one set is used as a steam supply for the engines of the other set. An exhaust pipe 3| leads from the second set of engines to the exterior of the boiler shell.

Each turbine type engine embodies a plurality of alternate stators 32 and rotors 33, best shownin Figure 1, the stators and rotors being equipped with the conventional V-shaped vanes 34 and 35 which deflect the steam at an angle from one 15 stator against the vanes of the next adjacent 33 next adjacent to the initial stator is provided with a port at the periphery thereof so that the incoming steam and gaseous products of combustion will be picked up by-the fan near the hub 4| thereof and thrown out by centrifugalforce past the annular intake port 40 of the initial stator and will finally collect at-the bottom of the engine cas g and may be drawn off periodically or continuously through a draw oif pipe 42.

A relief valve 43 is mounted in the top of the boiler shell for relieving excess' pressure from the boiler.

- From the foregoing description it' will be seen dissipation. usually found in conventional power gether with the steam in the boiler,

the water surrounding the tubes and the combustion chamber.

From the above description it is thoughtthat the construction and operation of the invention will be fully understood without further explanation.

What is claimed is:

1. Power generating apparatus including a horizontally disposed boiler shell, a combustion chamber extending substantially the full length of the bottom of the shell, a plurality of horizontally disposed turbine type engines withinthe steam space of the shell and subjected to steam throughout their entire exteriors; heattransfer tubes extending vertically upward from the combustion chamber into the steam space and directing hotgaseous products of combustion against the engines and into the steam space, a steam dome' on the shell for collecting andmixing the products of combustion and steam,and steam pipes extending fromthe steam dome and connecting the engines together in series parallel.

2. Power generating! apparatus including a horizontall disposed boiler shell, a combustion chamber e ending substantially the full length of the bottom of the shell, a plurality of horizontally disposed turbine type engines within the steam space 0 the shell and subjected to steam throughout th ir entire exteriors, heat transfer tubes extending vertically upward from the combustion chamber into the steam space and directing hot gaseous products of. combustion against the engines and into the steam space, a steam dome on the shell for collecting and mixing the products of cbmbustion and steam, steam pipes extending from the steam dome and connecting the engines together in series parallel, a dollection chamber for foreign mattei in the boiler at the intake end of one of the engines, and a faninsaid chamber driven .by the last named engine for separating foreign matter from the products sequent removal.

EUGENE M. Evans 

